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2 years ago

1 121 12321 1234321.......56th

Mathematics

1 answer:

Rudik [331]2 years ago

3 0

Answer:

Bro it is too hard to find . Hope you understand me

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What is the product of three tenths and four hundredths

Ipatiy [6.2K]

Picture is to blurry fix the pic and I will answer it if I can

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2 years ago

The lengths of the sides of a triangle are 2x+1, 3x-2, and 4x-5. what is the perimeter in terms of x

STALIN [3.7K]

Answer:

Step-by-step explanation:

2X + 1 + 3X - 2 + 4X - 5 = 180

9X - 6 = 180

9X = 174

9 = 174

ـــــــــــــــــــــ

9 9

X = 19.333

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2 years ago

Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

r-ruslan [8.4K]

Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

$q=1-p=1-\frac{1}{2}=\frac{1}{2}$

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

$\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}$

$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

Therefore the value of given expression is $\frac{21}{128}$ .

7 0

2 years ago

Pls help me!!<br> Which two equations are equivalent?<br> y= 1/2x+3<br> y=x+6<br> 2y=x+6

Zigmanuir [339]

Answer:

first and third

Step-by-step explanation:

Consider

y = $\frac{1}{2}$ x + 3 ( multiply through by 2 )

2y = x + 6 ← third equation

4 0

2 years ago

Read 2 more answers

two planes travel a constant speed. plane A travels 2.800 miles in 5 hours plane B travels 3.885 miles in 7 hours. which plane i

vfiekz [6]

Plane a is faster

Have a good day!!!

3 0

2 years ago

1 121 12321 1234321.......56th​

1 121 12321 1234321.......56th